Now just so nobody thinks this is a valid excuse to give the officer as he's writing your speeding ticket.... it's not the car speed that matters, it's the RPM. You can probably hold a lower gear with that auto-step-widget flappy-paddle gear thingy that 90% of you have, and keep the revs up while obeying the law. Us manual transmission guys can just leave it in 4th when cruising legally at 65mph (as we always do, right?). The engine warms up completely, turns the moisture to steam, you vent the steam, all is well.

Interesting to see the locations of people on this thread - Wisconsin, Toronto, Minnesota (* 2), Montreal, northern NY, Mass, and all in December/January/February.